This.
Normal mode is pretty challenging if your group can only invest 3-6 hours a week. This is not bad at all. Some encounters are hard and need training to get into the routine.
ToT will be PUGable if enough casual players have the experience that is needed or if enough overgeared/experienced people are in the group that trivialize the encounter.

I want heroic Raids to be hard and challenging. When i taking a break during 5.2 Many guilds were 12/12 normal and i was quite surprise of this.When heroic runs came i think it took about 4 weeks for guilds to be 13/13. Blizz needs to change this playstyle and make it so that when a new raid comes, normal mode will be hard as an heroic mode and Heroic mode as impossible mode. But doing this at the same time will affect the casuals so idk what hell is going on.

If you didn't clear 12/13 HM the week HMs were out like Method and Paragon, you have no reason to demand this. In fact..I doubt you are 13/13 HM right now....

Sod it..even if you are 13 / 13 HM right now..why the hell do you demand raids to be "impossible". It wouldn't even be hard...just add an impossible dps req before a hard enrage or sth...it just would be stupid, stupid game design. Nobody would even raid these HMs...because you KNOW that it is impossible...

Originally Posted by Blizzard Entertainment

... there are lots of different types of players, with different amounts of time to play, and different tastes for the content and difficulty and time commitment they want to give to any of those pieces of content. The person that plays for an hour or so a few times a week is playing the same game as the person that plays five hours every night.....

I don't know what game you're playing, Normal modes (all of them) and some Heroic modes are harder than they have ever been in WoW this tier.

If Blizzard did what you suggest the bosses would be pretty much mathematically impossible to kill, and maybe only 1 or 2 guilds in the world would ever completely finish a tier on heroic. Do you honestly think that is good business practice? Or in fact what anyone actually wants at all? Blizzard will never ever ever create content that applies to only 100 people out of 8+ million of their customers, you literally have more chance of walking outside your house right now and getting struck by lightning, twice.

If you really believe this would be a good idea, I strongly advise you to never put yourself in a position of product responsibility - it wont end well.

Your persistence of vision does not come without great sacrifice. Let go of the tangible mass of your mind, it is only an illusion. There is no escape.. For the soul burns on everlasting encapsulated within infinite time. A thousand year journey at the blink of an eye... Humanity is dust..

I also think that its about time people start running 3 minute miles, because waayyyyy too many people have run 4 minute miles. Personally I think I once ran a mile in like 7 minutes, but its not like that is at all relevant, im sure i could have run a mile in under 4 minutes if i simply ran twice as fast!

Most people would rather die than think, and most people do. -Bertrand Russell
There is not a flag large enough to cover the shame of killing innocent people. -Howard Zinn
Reality is that which, when you stop believing in it, doesn't go away. -Philip K. DickThe nationalist not only does not disapprove of atrocities committed by his own side, but he has a remarkable capacity for not even hearing about them. -George Orwell

yeah.. you can't really. At least I cannot imagine a lot of pugging working. In fact.. I have seen exactly 0 pugs this tier; ToT is so pug unfriendly.
ToT has a ton of awareness and "retard" checks. Do those wrong and the whole raid wipes. In fact it is easier to kill something 9 man than it is to take a bad trial with you even.